SSJ Combat Model Sim CompAd HCA Orig approved signed 1

SOLE SOURCE JUSTIFICATION

U.S. Department of Energy (DOE)
National Nuclear Security Administration (NNSA)
Task Order 89233126FNA400784
August 12, 2026
(1)

AGENCY AND CONTRACTING ACTIVITY

This action is being taken by the U.S. Department of Energy, National Nuclear Security Administration (DOE / NNSA). The contracting activity is the NNSA Contracting Operations Division, Headquarters Services Acquisition Branch (NA-PAS-314).
(2)

NATURE AND / OR DESCRIPTION OF THE ACTION

The action will result in the award of a follow-on Firm Fixed Price Task Order to RhinoCorps (47QRAA22D000P) under the General Services Administration (GSA) Multiple-Award Schedule (MAS) Program. The period of performance for the follow-on Task Order is October 1, 2026 through September 30, 2031.
(3)

DESCRIPTION OF THE SUPPLIES OR SERVICES REQUIRED

This action supports the NNSA Office of Defense Nuclear Security’s (DNS) requirement for a consistent modeling and simulation tool and associated support for evaluating physical protection systems across the Nuclear Security Enterprise (NSE). This includes standardized versions, deployment configurations, training, software maintenance, centralized upgrades, program direction, scenario modeling, assessment capability, standardized reporting, and auditing features. The requirement also includes continued implementation of DOE Order 470.3C, Design Basis Threat (DBT) or its current version. The current proprietary tool set provided by RhinoCorps, known as the "Simajin Suite," includes Simajin (combat simulation), Simajin (simulation management), Vanguard (vulnerability analysis database), Pioneer (pathway analysis tool), and Troupe (tabletop control interface). The scope of this requirement is to provide these tools and support to the entire NNSA nuclear security complex. This support encompasses licenses, on-site software maintenance, training, on-site support, creation and maintenance of site models, execution of studies and neutralization analysis, and upgrades as directed by DNS. The contractor shall also assist with campaign/project combat modeling, performance testing data and collection for security systems.
The total estimated value for the five-year period is $11,987,559.28. (4)

SOLE SOURCE AUTHORITY AND RATIONALE

The authority permitting sole source justifications, found in the Revolutionary FAR Overhaul (RFO), is Subpart 538.71, Federal Supply Schedule Ordering Procedures, and General Services Acquisition Manual (GSAM) 1 538.7104-4 - items peculiar to one manufacturer.